A boxing practice device is provided, including: a support body, including a first support rod, a second support rod which is lateral to the first support rod and a base, the first support rod swingably positioned on the base, the second support rod movably positioned on the first support rod, the second support rod extending along a first rotation axis; a boxing mechanism, including a first boxing member and at least one second boxing member, the first boxing member being rotatably attached to the second support rod and rotatable about the first rotation axis, the at least one second boxing member being detachably assembled to the second support rod.